// file      : odb/lazy-ptr.txx
// author    : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license   : GNU GPL v2; see accompanying LICENSE file

namespace odb
{
  //
  // lazy_ptr
  //

  template <class T>
  template <class Y>
  bool lazy_ptr<T>::
  equal (const lazy_ptr<Y>& r) const
  {
    if (loaded () && r.loaded ())
      return p_ == r.p_;

    // If one of the object is not loaded, then we compare databases and
    // object ids. Note that NULL pointers cannot have non-NULL databases
    // and if both of them are NULL, we wouldn't have gotten here.
    //
    typedef typename object_traits<T>::object_type object_type1;
    typedef typename object_traits<Y>::object_type object_type2;

    return i_.database () == r.i_.database () &&
      object_id<object_type1> () == r.object_id<object_type2> ();
  }
}